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Tom Rini83d290c2018-05-06 17:58:06 -04001/* SPDX-License-Identifier: GPL-2.0+ */
richardretanubun07f3d782008-09-26 11:13:22 -04002/*
3 * Copyright (C) 2008 RuggedCom, Inc.
4 * Richard Retanubun <RichardRetanubun@RuggedCom.com>
richardretanubun07f3d782008-09-26 11:13:22 -04005 */
6
7/*
8 * See also linux/fs/partitions/efi.h
9 *
10 * EFI GUID Partition Table
11 * Per Intel EFI Specification v1.02
12 * http://developer.intel.com/technology/efi/efi.htm
13*/
14
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010015#include <linux/compiler.h>
16
richardretanubun07f3d782008-09-26 11:13:22 -040017#ifndef _DISK_PART_EFI_H
18#define _DISK_PART_EFI_H
19
Simon Glass867a6ac2015-07-31 09:31:36 -060020#include <efi.h>
21
richardretanubun07f3d782008-09-26 11:13:22 -040022#define MSDOS_MBR_SIGNATURE 0xAA55
Sam Protsenko955575c2018-05-22 02:04:21 +030023#define MSDOS_MBR_BOOT_CODE_SIZE 440
richardretanubun07f3d782008-09-26 11:13:22 -040024#define EFI_PMBR_OSTYPE_EFI 0xEF
25#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
26
richardretanubun07f3d782008-09-26 11:13:22 -040027#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
28#define GPT_HEADER_REVISION_V1 0x00010000
29#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
Maxime Ripard4ce52192017-11-14 20:50:04 +010030#define GPT_ENTRY_NUMBERS CONFIG_EFI_PARTITION_ENTRIES_NUMBERS
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010031#define GPT_ENTRY_SIZE 128
richardretanubun07f3d782008-09-26 11:13:22 -040032
richardretanubun07f3d782008-09-26 11:13:22 -040033#define PARTITION_SYSTEM_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010034 EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
35 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
richardretanubun07f3d782008-09-26 11:13:22 -040036#define LEGACY_MBR_PARTITION_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010037 EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
38 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
richardretanubun07f3d782008-09-26 11:13:22 -040039#define PARTITION_MSFT_RESERVED_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010040 EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
41 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
richardretanubun07f3d782008-09-26 11:13:22 -040042#define PARTITION_BASIC_DATA_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010043 EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
44 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
Patrick Delaunayb38c1082015-10-27 11:00:26 +010045#define PARTITION_LINUX_FILE_SYSTEM_DATA_GUID \
46 EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \
47 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4)
richardretanubun07f3d782008-09-26 11:13:22 -040048#define PARTITION_LINUX_RAID_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010049 EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
50 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
richardretanubun07f3d782008-09-26 11:13:22 -040051#define PARTITION_LINUX_SWAP_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010052 EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
53 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
richardretanubun07f3d782008-09-26 11:13:22 -040054#define PARTITION_LINUX_LVM_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010055 EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
56 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
richardretanubun07f3d782008-09-26 11:13:22 -040057
58/* linux/include/efi.h */
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010059typedef u16 efi_char16_t;
richardretanubun07f3d782008-09-26 11:13:22 -040060
richardretanubun07f3d782008-09-26 11:13:22 -040061/* based on linux/include/genhd.h */
62struct partition {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010063 u8 boot_ind; /* 0x80 - active */
64 u8 head; /* starting head */
65 u8 sector; /* starting sector */
66 u8 cyl; /* starting cylinder */
67 u8 sys_ind; /* What partition type */
68 u8 end_head; /* end head */
69 u8 end_sector; /* end sector */
70 u8 end_cyl; /* end cylinder */
71 __le32 start_sect; /* starting sector counting from 0 */
72 __le32 nr_sects; /* nr of sectors in partition */
73} __packed;
richardretanubun07f3d782008-09-26 11:13:22 -040074
75/* based on linux/fs/partitions/efi.h */
76typedef struct _gpt_header {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010077 __le64 signature;
78 __le32 revision;
79 __le32 header_size;
80 __le32 header_crc32;
81 __le32 reserved1;
82 __le64 my_lba;
83 __le64 alternate_lba;
84 __le64 first_usable_lba;
85 __le64 last_usable_lba;
richardretanubun07f3d782008-09-26 11:13:22 -040086 efi_guid_t disk_guid;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010087 __le64 partition_entry_lba;
88 __le32 num_partition_entries;
89 __le32 sizeof_partition_entry;
90 __le32 partition_entry_array_crc32;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010091} __packed gpt_header;
richardretanubun07f3d782008-09-26 11:13:22 -040092
Stephen Warren13bf2f52012-10-08 08:14:36 +000093typedef union _gpt_entry_attributes {
94 struct {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010095 u64 required_to_function:1;
96 u64 no_block_io_protocol:1;
97 u64 legacy_bios_bootable:1;
98 u64 reserved:45;
99 u64 type_guid_specific:16;
Stephen Warren13bf2f52012-10-08 08:14:36 +0000100 } fields;
101 unsigned long long raw;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100102} __packed gpt_entry_attributes;
richardretanubun07f3d782008-09-26 11:13:22 -0400103
Lei Wen6eecc032011-09-07 18:11:19 +0000104#define PARTNAME_SZ (72 / sizeof(efi_char16_t))
richardretanubun07f3d782008-09-26 11:13:22 -0400105typedef struct _gpt_entry {
106 efi_guid_t partition_type_guid;
107 efi_guid_t unique_partition_guid;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100108 __le64 starting_lba;
109 __le64 ending_lba;
richardretanubun07f3d782008-09-26 11:13:22 -0400110 gpt_entry_attributes attributes;
Lei Wen6eecc032011-09-07 18:11:19 +0000111 efi_char16_t partition_name[PARTNAME_SZ];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100112} __packed gpt_entry;
richardretanubun07f3d782008-09-26 11:13:22 -0400113
114typedef struct _legacy_mbr {
Sam Protsenko955575c2018-05-22 02:04:21 +0300115 u8 boot_code[MSDOS_MBR_BOOT_CODE_SIZE];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100116 __le32 unique_mbr_signature;
117 __le16 unknown;
richardretanubun07f3d782008-09-26 11:13:22 -0400118 struct partition partition_record[4];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100119 __le16 signature;
120} __packed legacy_mbr;
richardretanubun07f3d782008-09-26 11:13:22 -0400121
Wolfgang Denk3cbd8232008-11-02 16:14:22 +0100122#endif /* _DISK_PART_EFI_H */